Note that this app requires a custom Bluetooth Low Energy module and an iOS device that supports Bluetooth Low Energy (iPhone 4S and newer) to operate. Info on the module can be found here:
https://www.jb4tech.com/forum/model-specific-engine-tuning-modification-discussion/jb4-mobile/1192-
JB4 Mobile is a mobile data logger and display for use with the JB4 tuner from Burger Motorsports.
JB4 Mobile allows you to monitor multiple parameters of your JB4 equipped car at once. Parameters such as boost psi, rpm, fuel trims, air/fuel ratios, ignition advance, fuel pressure and much more are all available.
Features:
Data Monitoring
Data logging
Graphing of logged data
Email saved logs
Read/Delete codes
Modify boost/fuel mapping
Modify nitrous/methanol settings
Download and update JB4 firmware
Multiple gauge designs
G-Force Meter
GPS Speedometer
Demo Mode is available in the settings menu.
JB4 ® is a registered trademark of Burger Motorsports Inc ® and is used with written permission.
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Screenshots
JB4 Mobile FAQ
Is JB4 Mobile free?
JB4 Mobile is not free (it costs 44.99), however it doesn't contain in-app purchases or subscriptions.
Is JB4 Mobile legit?
🤔 The JB4 Mobile app's quality is mixed. Some users are satisfied, while others report issues. Consider reading individual reviews for more context.
I like the guys over at burger. They are pretty responsive on the forums and provide continuous support for the app. Just send them your logs on the forum and they will help you as best as they can.
The module is a boost controller so much of the tuning will be dependent on the fueling, spark plugs, and small adjustments in the app.
It’s basically the same stuff bmw is keeping from you behind a paywall. After all their engines are b48s,b58s and for the big spenders s55s . This beat paying bmw an extra 10k - 15k for a trim and horsepower increase.
Won’t stay connected
I love this app, but it has a quite a few bugs. It won’t let me stay connected to the tune for some reason even after restarting my phone and checking for updates for the app other than that, I’m satisfied, but please fix these bugs.
CarPlay integration
The app is great, but it would be really nice to see CarPlay integration without having to use a device to force CarPlay or android auto. Please try to integrate that.
Can’t save
Can’t save adjustments be cause there’s no way to get keyboard to go away
New Gauges
It’s needed the app for my tuner. For the most part it’s great on the fly. I’m able to check my logs, switch my map, change my tune. Love it. Unfortunately I’m missing some parts of monitoring. I’m sure it’s due to availability and car. But I’m unable to get my Trans temp, oil temp, and some other. I also do wish there are more different styling gauges.
iPhone 15
Can you please edit the app for compatibility with iPhone 15/15 Pro? It’s difficult to, for example, see the top menu bar in the edit area for the different displays. Thank you!
App function
I recently purchased this and for a product you can diy; it sure doesn’t come with a lot of information for the user. I went into a bio settings and it was just a bunch of stuff I don’t understand. Would be nice if I didn’t have to google all this information. Also, the app inverted and wouldn’t change back to the original position. Some help would be greatly appreciated.
App doesn’t work on my iPhone 13
The app isn’t working on my phone but works for my android
Needs an update
App cost $28 but hasnt been updated in a year. Burger motorsports is such a great company, with an insane amount of JB4s sold and installed today. Please make updates to the app, my biggest issue is the constantly disconnecting from my bluetooth.
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